#ot-melding-form {
  max-width: 600px;
  margin: 0 auto;
}
#ot-melding-form input, select, textarea {
  width: 100%;
  margin-bottom: 12px;
  padding: 8px;
}
#ot-melding-form input[type="checkbox"] {
  width: auto;
  margin-right: 6px;
}
#ot-form-message {
  margin-top: 10px;
  font-weight: bold;
}